Food proteins in clay pots

Collagen stability is made possible by a chemical reaction that prevents water from attacking the chemical bonds that hold the collagen fibers together. The chemical reaction against a dinosaur background | From the article Yang et al. 2024

Collagen in fossils: proteins as a biological archive of the past

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Unlike DNA, proteins like collagen can sometimes survive for millions of years in fossils. Scientists use this ability to learn a lot about the biology of ancient creatures.
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